Pronunciation: p ə - ' ri-tri-k ə s
Function: adjective
Etymology: peri- + Greek trich-, thrix hair
Date: 1877
1 : having flagella uniformly distributed over the body < peritrichous bacteria>
2 : having a spiral line of modified cilia around the oral disk < peritrichous protozoa>
– pe · rit · ri · chous · ly adverb